Question

import Foundation
import SpriteKit

class MovingGround : SKSpriteNode {

    let MovingGroundTexture = SKTexture(imageNamed: "MovingGround")

    init(size: CGSize) {
        super.init(texture: nil, color: nil, size:CGSizeMake(size.width, size.height))
        anchorPoint = CGPointMake(0, 0)
        position = CGPointMake(0.0, 0.0)
        zPosition = 1
    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

}

我一直在color: nil收到错误，我该如何更改呢？

Answer 1

正如错误消息所示，super.init(texture: nil, color: UIColor.whiteColor(), size:size)不是一种颜色。如果您打算致电-- Foreign Key: "FK_Reviews_ReviewSetup_Id_ReviewSetups_Id" -- ALTER TABLE "Reviews" DROP CONSTRAINT "FK_Reviews_ReviewSetup_Id_ReviewSetups_Id"; ALTER TABLE "Reviews" ADD CONSTRAINT "FK_Reviews_ReviewSetup_Id_ReviewSetups_Id" FOREIGN KEY ("ReviewSetup_Id") REFERENCES "ReviewSetups" ("Id") MATCH SIMPLE ON UPDATE CASCADE ON DELETE CASCADE;，您必须提供实际颜色。我建议白色，这是默认值。

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Nil与预期的参数类型不兼容＆＃39; UIColor＆＃39;

1 个答案: